Clin Orthop Surg.  2016 Sep;8(3):249-253. 10.4055/cios.2016.8.3.249.

Genu Recurvatum versus Fixed Flexion after Total Knee Arthroplasty

• Koo K
• Silva A
• Chong HC
• Chin PL
• Chia SL
• Lo NN
• Yeo SJ

• KMID: 2374269
• DOI: http://doi.org/10.4055/cios.2016.8.3.249

Abstract

BACKGROUND
To date, there is no study comparing outcomes between post-total knee replacement genu recurvatum and fixed flexion. This study aims to provide data that will help in deciding which side to err on when neutral extension is not achieved.
METHODS
A prospective cohort study of primary total knee arthroplasties was performed, which compared the 6-month and 2-year clinical outcomes between fixed flexion and genu recurvatum deformities at 6 months.
RESULTS
At 6 months, knees in genu recurvatum did better than knees in fixed flexion deformity in terms of knee flexion. However, at 2 years, knees in fixed flexion deformity did better in terms of knee scores and showed better improvement in the degree of deformity.
CONCLUSIONS
We conclude that it is better to err on the side of fixed flexion deformity if neutral alignment cannot be achieved.

Keyword

Knee; Arthroplasty; Deformity; Flexion; Recurvatum

MeSH Terms

Aged
Arthroplasty, Replacement, Knee/*adverse effects/*statistics & numerical data
Female
Humans
Knee Joint/*physiopathology/*surgery
Male
Middle Aged
Prospective Studies
Range of Motion, Articular
Treatment Outcome

Figure

• 

  Fig. 1 Progression of deformity from 6 months to 2 years.

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